CVE-2026-32257 – Winter: Stored XSS through Brand Settings custom styles

​CVE ID :CVE-2026-32257

Published : Aug. 26, 2026, 5:16 p.m. | 1 hour, 57 minutes ago

Description :Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Prior to 1.2.13, custom CSS supplied through the Brand Settings Styles field by a backend user with the backend.manage_branding permission is compiled by the LESS parser and rendered without sanitization on every backend page, allowing stored cross-site scripting against backend users. This issue is fixed in version 1.2.13.

Severity: 8.1 | HIGH

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